National Natural Science Foundation of China [61871067, 61901061]; Fundamental Research Funds for the Central Universities, China [DUT20ZD220]; Supercomputing Center of Dalian University of Technology
机构署名:
本校为其他机构
院系归属:
计算机与通信工程学院
摘要:
Independence and sparsity are proved to be two basic features for spatial activations of functional magnetic resonance imaging (fMRI) data, and have shown efficiency in analysis of magnitude-only fMRI data. Since complex-valued fMRI data contains additional brain activity information beyond magnitude-only fMRI data, we propose to incorporate sparsity constraint into complex independent vector analysis (IVA) to take advantages of the two features in analyzing multi-subject complexvalued fMRI data. Specifically, we propose to improve a complexvalued IVA algorithm named AFIVA (adaptive fixed-poin...